Company lists · Data refreshed September 2026

Top 25 IT services for accounting firms based in the United Kingdom

RevenueBase identified 4,485 company matches for IT services for accounting firms associated with the United Kingdom as of September 2026 and tracks 41,578 professional contacts across them, including 17,278 with verified work emails and 1,663 with mobile numbers. London is the largest hub.

This list covers company matches for IT services for accounting firms associated with the United Kingdom, found by RevenueBase SmartSearch using the meaning of business descriptions in its company graph at Exact. Ranked by professionals tracked, largest first. Rows show recorded descriptions where available, Exact search membership and the snapshot date. Data refreshed September 27, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase SmartSearch, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list RevenueBase SmartSearch · Exact Recorded Sep 27, 2026 How this list was built
4,485Companies
41,578Contacts tracked
17,278Verified emails
1,663Mobile numbers
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The 25 largest IT services for accounting firms based in the United Kingdom

Ranked by team size
Top 25 of 4,485 company matches for IT services for accounting firms based in the United Kingdom, ordered by professional contacts tracked in RevenueBase, largest first. Recorded Sep 27, 2026. The RevenueBase SmartSearch column shows Exact match membership in this saved search. Click a contact count to view that company's people. Totals use company locations recorded by RevenueBase; the displayed preview is a smaller selection.
#CompanyRevenueBase SmartSearchHeadquartersEmployeesContacts
1Exact matchLondon, United KingdomHQ recorded Sep 27, 20265,001-10,0006,933 contacts →

Exact match

“BDO LLP is an accountancy and business advisory firm that provides Audit, Tax, Deals, and Consulting, Risk & Outsourcing (CR & O) services to entrepreneurial, growing and…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
2Exact matchUk And Ireland, United KingdomHQ recorded Sep 27, 20261,001-5,0001,125 contacts →

Exact match

“We provide services that help businesses at every stage of the lifecycle.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
3Exact matchLondon, United KingdomHQ recorded Sep 27, 2026501-1,000702 contacts →

Exact match

“We are a fast-growing firm of accountants and business advisers based in London’s Canary Wharf, Leeds and in Manchester.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
4Exact matchExeter, United KingdomHQ recorded Sep 27, 2026501-1,000700 contacts →

Exact match

“Any good accountancy firm can help with your finance, audit, and tax.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
5Exact matchCarlisle, United KingdomHQ recorded Sep 27, 2026501-1,000579 contacts →

Exact match

“Armstrong Watson has been advising and protecting clients across the North of England and Scotland since 1867.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
6Exact matchLondon, United KingdomHQ recorded Sep 27, 20261,001-5,000505 contacts →

Exact match

Recorded description not available.

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
7Exact matchHarrow, United KingdomHQ recorded Sep 27, 2026201-500477 contacts →

Exact match

“Outbooks is a leading provider of outsourcing services to accounting and bookkeeping firms.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
8Exact matchLondon, United KingdomHQ recorded Sep 27, 2026201-500379 contacts →

Exact match

“Welcome to the new era of accountancy.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
9Exact matchBirmingham, United KingdomHQ recorded Sep 27, 2026501-1,000374 contacts →

Exact match

“Your success matters.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
10Exact matchStapleford, United KingdomHQ recorded Sep 27, 2026n/a296 contacts →

Exact match

“Accounting services for sole traders and SME’s.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
11Exact matchLondon, United KingdomHQ recorded Sep 27, 202651-200203 contacts →

Exact match

“Lubbock Fine is an independent accounting, tax, audit and advisory firm in the City of London.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
12Exact matchWorthing, United KingdomHQ recorded Sep 27, 2026201-500198 contacts →

Exact match

“Award-winning Carpenter Box is a leading accountancy firm in the South-East, recognised for innovation, client service, and team excellence.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
13Exact matchSwindon, United KingdomHQ recorded Sep 27, 2026201-500191 contacts →

Exact match

“For over a century, Monahans has been at the heart of local business communities in the South West and beyond.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
14Exact matchBrighton, United KingdomHQ recorded Sep 27, 2026201-500187 contacts →

Exact match

“Galloways is the fastest growing accounting services firm in Sussex.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
15Exact matchDundee, United KingdomHQ recorded Sep 27, 2026201-500167 contacts →

Exact match

“In 2023, EQ Accountants became part of Sumer – a collaboration of renowned regional accountancy practices with a shared vision to champion local small to medium-sized enterprises.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
16Exact matchIpswich, United KingdomHQ recorded Sep 27, 2026201-500164 contacts →

Exact match

“From offices in Bury St Edmunds, Colchester, Norwich and Ipswich, Scrutton Bland serves a range of clients from small owner-managed businesses to large corporate organisations and…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
17Exact matchDroitwich, United KingdomHQ recorded Sep 27, 202651-200151 contacts →

Exact match

“For 40 years, Ormerod Rutter have offered the specialist hands-on support that clients need to handle all of their tax, business and financial affairs.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
18Exact matchCanterbury, United KingdomHQ recorded Sep 27, 202651-200140 contacts →

Exact match

“Burgess Hodgson are a Kent based accountancy firm with the skills and expertise to rival any other accountancy firm in the UK.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
19Exact matchStockport, United KingdomHQ recorded Sep 27, 202651-200136 contacts →

Exact match

“Just imagine.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
20Exact matchNewport, United KingdomHQ recorded Sep 27, 202651-200134 contacts →

Exact match

“Award winning accountants & tax advisors based in Newport, South Wales.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
21Exact matchLondon, United KingdomHQ recorded Sep 27, 202611-50133 contacts →

Exact match

“Traditional accountants do a great job of the numbers, but that's often as far as the service goes.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
22Exact matchEast Anglia, United KingdomHQ recorded Sep 27, 202651-200114 contacts →

Exact match

“Whitings LLP are a firm of general practice chartered accountants, the partners of which are predominantly members of the Institute of Chartered Accountants in England and Wales.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
23Exact matchLeeds, United KingdomHQ recorded Sep 27, 202651-200109 contacts →

Exact match

“We have over 40 years of experience and pride ourselves on understanding our clients, their businesses, and the issues they face, no matter how big or small.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
24Exact matchWokingham, United KingdomHQ recorded Sep 27, 202651-200107 contacts →

Exact match

“FLB is a firm of accountants providing core accounting services to a range of clients from start-ups, owner-managed businesses and private clients, to large corporates and…”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase
25Exact matchNewcastle Upon Tyne, United KingdomHQ recorded Sep 27, 20265,001-10,000106 contacts →

Exact match

“Azets can help you achieve your business ambitions.”

Recorded in the RevenueBase company graph · Sep 27, 2026 · View company records in RevenueBase

Showing 25 of 4,485 IT services for accounting firms based in the United Kingdom

See the full list, filter by size, metro and specialty, and access 17,278 tracked professional contacts with verified work emails. Direct dials are available where recorded.

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IT services for accounting firms based in the United Kingdom at a glance

As of Sep 27, 2026
41.6%Verified-email coverage
4.0%Mobile-number coverage
9.3Average contacts per company
1-10Median size (employees)
18.8%Largest-city concentration · London
Sep 27, 2026Page data refreshed

Companies by employee count

1-10
3,216
11-50
1,040
51-200
143
201-500
24
501-1,000
14
1,001-5,000
12
5,001-10,000
2
10001+
2

Freshness & accuracy

How recently the business emails were verified and the company information checked

Email last verified

Median 30.0d

Company record updated

Median 93.0d

How this list was built

The recorded descriptions help you assess these company matches. Check a company’s website for its current services and locations.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase SmartSearch, the natural-language company search available to every RevenueBase user.
What qualifies
Company records associated with the United Kingdom whose business descriptions match “IT services for accounting firms” by meaning at the Exact setting. Descriptions are compiled in the RevenueBase company graph from public websites, profiles and company information where available; they are not guaranteed quotations from the company's website.
RevenueBase SmartSearch
Describe a niche company in your own words to find businesses by meaning. Exact, Similar, Related and Broad control the breadth of RevenueBase SmartSearch. This saved list uses Exact. Each row's Exact match badge shows inclusion in that search, not an individual score or a service-quality judgment.
Public preview
The public preview omits records without a verified work email. Where headquarters information is recorded, preview rows are also filtered to this page’s location. Dataset totals and geographic summaries describe the full matched records before these preview filters.
Match quality
RevenueBase's August 25, 2026 study assessed 4,198 description/company pairs across matching settings. The publisher reports 86% good or better at Exact. This evaluates the method across queries; it does not audit this individual list. Recorded company descriptions, where available, help you judge each match yourself. Read the full methodology: how the lists are built and what the study measures.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every displayed company carries at least one verified work email. RevenueBase tracks 17,278 professional contacts with verified work emails across the full matched dataset. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 27, 2026. Lists refresh periodically as the graph is re-checked.
Record context
Company records and descriptions can change. Check the company's website for its current services and locations.

Frequently asked

What is RevenueBase SmartSearch?

RevenueBase SmartSearch finds niche companies by the meaning of their business descriptions in the RevenueBase company graph. Exact, Similar, Related and Broad control how closely companies must fit your description. This list uses Exact for “IT services for accounting firms”; each Exact match badge shows search membership, not an individual similarity or quality score.

How many IT services for accounting firms are there based in the United Kingdom?

RevenueBase identified 4,485 company matches for IT services for accounting firms associated with the United Kingdom as of September 2026, using the meaning of business descriptions at Exact. This is the recorded matched set in the RevenueBase company graph.

What is the largest company on this list?

BDO UK tops the displayed preview by professional contacts tracked in RevenueBase. Recorded headquarters appear in the company rows.

Which city has the most IT services for accounting firms?

London leads with 845 company records, followed by Manchester (94) and Birmingham (68).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work limited free results with 500 credits to start. Upgrading provides access to the 17,278 professional contacts with verified work emails tracked across these 4,485 companies; direct dials are available where recorded.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 27, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase SmartSearch, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.